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Agelenidae
The Agelenidae are a large family of spiders in the suborder Araneomorphae. Well-known examples include the common "grass spiders" of the genus ''Agelenopsis''. Nearly all Agelenidae are harmless to humans, but the bite of the hobo spider (''Eratigena agrestis'') may be medically significant, and some evidence suggests it might cause necrotic lesions, but the matter remains subject to debate. The most widely accepted common name for members of the family is funnel weaver. Description The body length of the smallest Agelenidae spiders are about , excluding the legs, while the larger species grow to long. Some exceptionally large species, such as ''Eratigena atrica'', may reach in total leg span. Agelenids have eight eyes in two horizontal rows of four. Their cephalothorax, cephalothoraces narrow somewhat towards the front where the eyes are. Their abdomens are more or less oval, usually patterned with two rows of lines and spots. Some species have longitudinal lines on the dors ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Agelenopsis Aperta
''Agelenopsis aperta'', also known as the desert grass spider or funnel-web spider, is a species of spider belonging to the family Agelenidae and the genus '' Agelenopsis''. It is found in dry and arid regions across the southern United States and into northwestern Mexico. Their body is about 13–18 mm long and they have relatively long legs in order to run after their prey. Desert grass spiders can withstand very low temperatures even though they do not cold harden. It constructs the characteristic funnel-shaped webs in crevices where the funnel will fit, where they wait in the tube for prey which they can run after using their long legs. They often hunt for their prey at night. ''A. aperta'' is known for its territoriality and will fight intruders to protect their space. ''A. aperta'' are mainly monogamous, and the male performs an elaborate courtship ritual that involves swaying his abdomen and releasing pheromones. The male's pheromones induce a cataplectic state in t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aeolocoelotes
''Aeolocoelotes'' is a genus of east Asian funnel weavers. It was first described by K. Okumura in 2020, and it has only been found in Japan Japan is an island country in East Asia. Located in the Pacific Ocean off the northeast coast of the Asia, Asian mainland, it is bordered on the west by the Sea of Japan and extends from the Sea of Okhotsk in the north to the East China Sea .... Species it contains eight species: *'' A. bifurcatus'' (Okumura & Ono, 2006) – Japan *'' A. cornutus'' (Nishikawa, 2009) – Japan *'' A. mohrii'' (Nishikawa, 2009) – Japan *'' A. personatus'' (Nishikawa, 1973) – Japan *'' A. saikaiensis'' (Okumura, 2013) – Japan *'' A. sanoi'' (Nishikawa, 2009) – Japan *'' A. unicatus'' (Yaginuma, 1977) – Japan *'' A. unzenensis'' (Okumura, 2013) – Japan See also * List of Agelenidae species References Further reading * * * * * Agelenidae genera Endemic spiders of Japan {{Agelenidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Giant House Spider
The giant house spider has been treated as either one species, under the name ''Eratigena atrica'', or as three species, ''E. atrica'', '' E. duellica'' and '' E. saeva''. , the three species view was accepted by the World Spider Catalog. They are among the largest spiders of Central and Northern Europe. They were previously placed in the genus '' Tegenaria''. In 2013, they were moved to the new genus '' Eratigena'' as the single species ''Eratigena atrica''. In 2018, the three separate species were restored. The bite of these species does not pose a threat to humans or pets, and they are generally reluctant to bite, preferring instead to hide or escape. Description The two sexes do not differ in coloration or markings. Its coloration is mainly dark brown. On its sternum is a lighter marking, with three light spots on each side that form an arrow-like shape pointing toward the head of the spider. The opisthosoma features a lighter middle line with six "spots" on each side. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Agelenopsis
''Agelenopsis'', commonly known as the American grass spiders, is a genus of funnel weavers described by C.G. Giebel in 1869. They weave sheet webs that have a funnel shelter on one edge. The web is not sticky, but these spiders make up for that by running very rapidly. The larger specimens (depending on species) can grow to about 19 mm in body length. They may be recognized by the arrangement of their eight eyes into three rows. The top row has two eyes, the middle row has four eyes, and the bottom row has two eyes (spaced wider than the ones on the top row). They have two prominent hind spinnerets, somewhat indistinct bands on their legs, and two dark bands running down either side of the cephalothorax. Name The genus name is a combination of '' Agelena'' (Eurasian grass spiders), a genus of similar spiders, and Greek ''-opsis'' "to look like". They are harmless spiders. Although most spiders use their webs to catch prey, the grass spider's web lacks adhesive ability. Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Agelenidae Species
This page lists all described genus, genera and species of the spider family Agelenidae. , the World Spider Catalog accepts 1468 species in 83 genera: A ''Acutipetala'' ''Acutipetala'' Dankittipakul & Zhang, 2008 * ''Acutipetala donglini'' Dankittipakul & Zhang, 2008 — Thailand * ''Acutipetala octoginta'' Dankittipakul & Zhang, 2008 (Type species, type) — Thailand ''Agelena'' ''Agelena'' Walckenaer, 1805 * ''Agelena agelenoides'' (Walckenaer, 1841) — Western Mediterranean * ''Agelena annulipedella'' Strand, 1913 — Central Africa * ''Agelena atlantea'' Fage, 1938 — Morocco * ''Agelena australis'' Simon, 1896 — South Africa * ''Agelena babai'' Tanikawa, 2005 — Japan * ''Agelena barunae'' Tikader, 1970 — India * ''Agelena borbonica'' Vinson, 1863 — Réunion * ''Agelena canariensis'' Lucas, 1838 — Canary Is., Morocco, Algeria * ''Agelena chayu'' Zhang, Zhu & Song, 2005 — China * ''Agelena choi'' Paik, 1965 — Korea * ''Agelena consociata'' Denis, 1965 — Gabon ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hobo Spider
The hobo spider (''Eratigena agrestis'', formerly ''Tegenaria agrestis'') is a member of the family of spiders known colloquially as funnel web spiders, but not to be confused with the Australian funnel-web spider. Individuals construct a funnel-shaped structure of silk sheeting and lie in wait at the small end of the funnel for prey insects to blunder onto their webs. Hobo spiders sometimes build their webs in or around human habitations. Despite past claims, there is no clear evidence that the hobo spider has venom that is dangerous to humans. Taxonomy The species was first described in 1802 by naturalist Charles Athanase Walckenaer as ''Aranea agrestis'', in reference to its western European habitat in fields, woods, and under rocks. In 1841, Walckenaer transferred the species to the genus '' Tegenaria''. In 2013, ''Tegenaria'' was split up, and the hobo spider was transferred to a new genus '' Eratigena'', an anagram of ''Tegenaria''. Identification Spiders, including ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Agelenella
''Agelenella'' is a genus of Asian funnel weavers containing the single species, ''Agelenella pusilla''. It was first described by Pekka T. Lehtinen in 1967, and has only been found in Yemen. Description It is about long and can be distinguished by the distinctly ringed legs. The pedipalps and the outer membrane of the carapace are yellowish orange with black marks. The legs are black with distinctive yellow rings. The tarsi and coxae are almost completely yellow. The underside is mostly black, though two lines run from the genital fold down the body. The legs and abdomen have sparse white hairs. Taxonomy Very few specimens have been recorded, and of the few found, all of them were females. Though ''Agelenella'' is thought to be a monophyletic group In biology, a clade (), also known as a monophyletic group or natural group, is a group of organisms that is composed of a common ancestor and all of its descendants. Clades are the fundamental unit of cladistics, a modern a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Acutipetala
''Acutipetala'' is a small genus of southeast Asian funnel weavers native to the evergreen forests of northern Thailand. They are medium-sized spiders, to long, and are distinguished by the distinctive appearance of several genital structures, including the embolus and the median apophysis of the male pedipalp. The eyes are in two rows, both of which are strongly curved forward. The genus was first described by P. Dankittipakul and Z. S. Zhang in 2008, and it contains only two species: '' A. donglini'' and '' A. octoginta''. The name is a combination of the Latin " acutus", meaning "sharp", and the Greek " petalon" (), in reference to the sharp, flower petal shape of the medial apophysis of the male pedipalp. See also * List of Agelenidae species This page lists all described genus, genera and species of the spider family Agelenidae. , the World Spider Catalog accepts 1468 species in 83 genera: A ''Acutipetala'' ''Acutipetala'' Dankittipakul & Zhang, 2008 * ''Acutipetala ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eratigena Agrestis
''Eratigena'' is a genus of spider in the family Agelenidae. Most of its species were moved from the genus '' Tegenaria'' in 2013, of which the genus name is an anagram. Two species that frequently build webs in and around human dwellings are now placed in this genus: the Agressive House Spider (''Eratigena agrestis'') (known as the hobo spider in the United States), native to Europe and Central Asia and introduced to North America, and the giant house spider (''Eratigena atrica''), native to Europe and also introduced into North America. Description They are medium to large spiders. Two symmetrical dark bands are present dorsally on the carapace, which can be serrated or reduced, usually to three or four conspicuous triangles. They also have plumose hairs on the carapace, legs, and opisthosoma. Their rows of eyes are only slightly curved in either direction. Taxonomy Phylogeny Species now placed in the genus ''Eratigena'' were previously placed in '' Tegenaria'' and '' Malthon ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Allagelena
''Allagelena'' is a genus of Asian funnel weavers first described by Z. S. Zhang, Ming-Sheng Zhu & D. X. Song in 2006. Taxonomy The genus was created in 2006, initially for four Chinese species previously placed in '' Agelena''. The name ''Allagelena'' is derived from ''allo-'', different, and the genus name ''Agelena'', so meaning "different from ''Agelena''", specifically in male and female sexual characters. Three further species were later transferred to this genus. Species it contains nine species: *'' Allagelena bifida'' (Wang, 1997) – China *'' Allagelena bistriata'' (Grube, 1861) (type Type may refer to: Science and technology Computing * Typing, producing text via a keyboard, typewriter, etc. * Data type, collection of values used for computations. * File type * TYPE (DOS command), a command to display contents of a file. * ...) – Russia (Far East), China *'' Allagelena difficilis'' (Fox, 1936) – China, Korea *'' Allagelena donggukensis'' (Kim, 1996) – K ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Agelescape
''Agelescape'' is a genus Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In bino ... of funnel weavers first described by G. Levy in 1996. Species it contains two species: *'' Agelescape affinis'' ( Kulczyński, 1911) — Turkey, Syria *'' Agelescape livida'' (Simon, 1875) — Mediterranean References Agelenidae genera Spiders of Asia {{Agelenidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ageleradix
''Ageleradix'' is a genus of East Asia East Asia is a geocultural region of Asia. It includes China, Japan, Mongolia, North Korea, South Korea, and Taiwan, plus two special administrative regions of China, Hong Kong and Macau. The economies of Economy of China, China, Economy of Ja ...n funnel weavers first described by Xu & Li in 2007. Species it contains six species: *'' Ageleradix cymbiforma'' (Wang, 1991) — China *'' Ageleradix otiforma'' (Wang, 1991) — China *'' Ageleradix schwendingeri'' Zhang, Li & Xu, 2008 — China *'' Ageleradix sichuanensis'' Xu & Li, 2007 — China *'' Ageleradix sternseptum'' Zhang, Li & Xu, 2008 — China *'' Ageleradix zhishengi'' Zhang, Li & Xu, 2008 — China References Agelenidae genera Spiders of China {{Agelenidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
